Estimate foundation line load, total foundation load, wall self-weight, floor load, roof load, snow load, footing pressure, and simplified soil bearing utilization. Use this foundation load calculator for stem walls, basement walls, crawlspace foundations, strip footings, slab edge footings, and preliminary structural planning.
Floor load:
The calculator multiplies tributary floor width by floor dead and live load, then multiplies by the number of supported floors.
Roof load:
The calculator multiplies tributary roof width by roof dead load and roof live or snow load when roof load is included.
Wall self-weight:
The calculator estimates foundation wall weight from wall thickness, wall height, and material density.
Bearing check:
The calculator divides total line load by footing width to estimate soil bearing pressure.
A foundation load calculator helps estimate how much load a wall or continuous footing transfers to the soil.
It can help compare floor loads, roof loads, wall weight, line loads, total foundation load, footing width, soil pressure, and required bearing width.
Your result shows estimated floor line load, roof line load, wall self-weight line load, additional line loads, total foundation line load, total foundation load, footing pressure, allowable soil bearing, required footing width, and simplified bearing utilization. These are planning estimates only.
Foundation load is the weight transferred from floors, roofs, walls, beams, posts, and other structure parts into the foundation and soil.
Foundation line load is the load carried by each linear foot of a continuous foundation wall or strip footing, usually expressed in pounds per linear foot.
For a continuous footing, divide the foundation line load by the footing width in feet. Compare that pressure with the allowable soil bearing capacity.
No. Final foundation design should account for soil reports, frost depth, settlement, lateral earth pressure, drainage, seismic and wind loads, reinforcement, concrete strength, local code, and professional engineering when required.